Bed



June 22, 1943. Q T, FQX ET AL 2,322,512

BED

Filed DeC. 9, 1941 2 Sheets-Shes?l l Inventors A omey June 22, 1943.

BED

Filed Deo. 9, 1941 2 Sheets-Sheet 2 o.` T. FOX ET Al. 2,322,512

Patented June 22, 1943 UNITED STATES PATENT OFFICE 1 Claim.

The present' invention relates to new and 'useful improvements in bedsand has for its primary object to provide, in a manner as hereinafterset forth, a novel construction and arrangement whereby the head portionof the spring and a mattress thereon may be conveniently raised by powerto vsubstantially any desired inclination,

Another very important object of the invention is to provide, in a bedof the aforementioned character embodying electric motor operatedraising and lowering means, novel means for automatically stopping themotor when the head portion of the spring reaches either its uppermostor lowermost position.

Other objects of the invention are to provide a bed of the characterdescribed which will be comparatively simple in construction, strong,durable, highly efficient and reliable in operation, compact and whichmay be manufactured at low cost.

All of the foregoing and still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, and wherein:

Figure 1 is a top plan view of a bed constructed in accordance with thepresent invention.

`Figure 2 is a fragmentary view in vertical lone gitudinal section,taken substantially on the line 2-2 of Figure l.

Figure 3 is a fragmentary view in cross section, taken substantially onthe line 3-3 of Figure l.

Figure 4 is a fragmentary view in horizontal section through a sideportion of the bed, taken substantially on the line 4-4 of Figure 2.

Figure 5 is a detail view in vertical section BED Orrin `T. FoxandMaurice B. Dillon,

Redding, Calif.

Application December 9, 1941, Serial No. 422,282

through one of the rollers and adjacent parts,

taken substantially on the line 5-5 of Figure 4.

Figure 6 is a view in vertical longitudinal section through a portion ofone of the tracks, showing one of the rollers operable therein and themotor stop switches.

Figure 7 is a detail view of the hand crank which may be used in theevent of motor failure.

Referring now to the drawings in detail, it will be seen that theembodiment of the invention which has been illustrated comprises a headand foot I and 2, respectively, of suitable construction. Extendinglongitudinally between the head and foot I and 2 are side rails 3.

Mounted on the side rails 3 of the bed is a spring unit which isdesignated generally by the reference numeral 4. The spring unit 4includes a base frame 5 which rests on the rails 3 and which has mountedthereon suitable coil springs 6. The spring unit 4 further includes anupper frame 'I which encircles the upper portions of the coil springs Bin the usual manner. The frames 5 and I are provided with hinged headportions 8 and 9, respectively. It will thus be seen that the headportion of the spring unit 4 is adapted to be raised to an inclinedposition.

Suspended by hangers I from the rails 3 is a frame structure which isdesignated generally by the reference numeral II, said frame structurehaving mounted thereon a housing I2 of suitable material. Mounted in theforward portion of the housing I2, adjacent the sides thereof,.is a pairof channel members constituting tracks I3. The purpose of the tracks I3will be presently set forth. Mounted in the rear portion of the housingI2 is a suitable electric motor.` I4. A transverse shaft I is connectedto the motor shaft I6 by a suitable flexible joint I l, said shaft I5being journaled in bearings I8. A worm I 9 is fixed on the shaft I5.

Journaled in bearings I9' in the housing I2 is a longitudinal screwshaft 20. Fixed on the rear end portion of the screw shaft is a wormgear 2| which is driven by the worm I9.

Mounted transversely in the housing I2 for forward and rearward movementis a tubular rod 22. Fixed in the end portions of the tubular rod 22 andprojecting therefrom are spindles 23 (see Figure 5). Journaled on thespindles 23 are rollers 24 which are adapted to travel in the tracks I3.A tubular yoke 26 has its ends fixed to the rod 22 adjacent the ends ofthe latter. As best seen in Figure 2 of the drawings, the screw shaft 2Gpasses through the intermediate or bight portion of the yoke 26. Fixedon this portion of the yoke 26 is a nut 2l which is threaded on thescrew shaft 2G. Thus, the yoke 26 and the tubular rod 22 are operativelyconnected to the screw shaft 20 for actuation there by. Tubular arms 28are provided with bearings 25 on one end which are journaled on thespindles 23 between the rollers 24 and the ends of the tubular rod 22.In this manner the arms 28 are connected to the tubular rod 22 foractuation thereby. Mounted in the forward or free endv In Figure 7 ofthe drawings a hand crank 32 is Y shown for manually rotating the shaftI5 should the electric motor I4 fail. It will be noted that the crank 32is long enough to be operatively connected to one end of the shaft I5from one side of the bed. The housing I2 may be provided y with anopening in one of its side walls to accommodate the crank 32.

It is thought that the operation of the bed will be readily apparentfrom a consideration of the foregoing. 'I'he electric motorV I4 Y isreversible. When the motor I4 is operating in one direction the screwshaft 2G is turned for feeding the nut 21, the yoke 26 and thel rod 22forwardly in the housing I2. Thus, the arms 28 areprnoved forwardly andthe head portion of the spring unit 4 is swung upwardly to an inclinedposition. Of course, a suitable mattress is placed on the spring unit 4.When the electricmotor` I4 is reversed the bed is lowered. Theconstruction and arrangement is such that the bed will remain in anydesired adjusted position. When either of the switches 3l is engaged andopened by the adjacent roller 24, the electric circuit to the motor isopened and said motor is automatically stopped. This roller may bedisengaged from the safety switches 3| for permitting same to vcloseagain by connecting the hand crank 32 to the shaft I5 and manuallyoperating the mechanism.

bed constructed in accordance with the present invention will be readilyunderstood and although a preferred embodiment of said bed is asillustrated and described, it is to be understood that changes in thedetails of construction and in the combination'and arrangement of partsmay Y be resorted to which will fall Within the scope of the inventionas claimed.

What is claimed is: A bed including a pair of side rails, a spring unitmounted on said side rails and comprising a hinged head section, ahousing suspended from the side rails, tracks mounted longitudinally inthe housing, a tubular rod mounted transversely in the housing andmovable longitudinally therein, spindles xed in the end portions of saidtubular rod and projecting therefrom, rollers journaled on said spindlesand operable ony the tracks, arms having one end pivotallyY MAURICE B.DILLON.

It is believed that the many advantages of a

